Revolving grate for gas-producers.



H. REHMANN. REVOLVING GBIATB FOR (ms PBODUGEBS.

' APPLICATION rum) m 8, 1 907.

Patented Oct. 19,1909.

mmo REHMANN, or Mi'ILHEm-oN-rHE-RUHR, GERMANY.

REVOLVING GRATE' FOR GAS-PRODUCERS.

To all whom "it may concern:

Be it known that I, HUGO REHMANN, a subject of the German Emperor, andresident of Biirgerstrasse' l0, li'liilheim-on-the- Ruhr, Germany, haveinvented certain new and useful Improvements in Revolving Grates forGas-Producers, of which the following is a specification.

The invention relates to revolving grates for gas producers which areprovided with a towel-like erection turning with. the grate it consistsessentially in the surfaces of the grate being formed out of severalsteep turrets provided with openings. The.co1nbustible continually slipsdown the steep turrets and thus gets well broken up. The distribution ofair is improved and the formation of large clinker-s avoided. In orderto prevent the settling of slag or clinker on the wall of thegcnt-rator, and to prevent the baking together of the coal on the top ofthe grate, one or more lateral projections in the form of scrapers arearr: nged on the revolving grate which reach near to the wall of the gasproducer. It is advisable to construct these projections with cuttingedges, sothat the slag may be easily sc'aped off during the rotation ofthe grate.

In order to bring about a uniform introduction of the blast, it is ledinto each turret ot' the grate and in addition steam pipes are arrangedin the blast. distribution pipes, which lead steam under the turrets ofthe grate as well each lateral projection in order to prevent the grateturrets from burning away while. working in the red hot cinders.

The drawing shows a form of construction .of the new revolving grate.

Figure l is a wrtical section, Fig. 2 is a plan. and hi 3 a partial sideview of the revolving grate with a lateral projection.

The producer body 1'), which supported in the usual way, projects withits bottom end into the water seal basin 1 The latter is fixed on theplate '1. which is turnably arranged in any well known manner and whichis provided with the towerlikc crection. In the form ofconstrimtionshown the arrangement of this erection is represented as being at theside of the axis of rotation (I, and around the middle lurrct at unequaldistances from the same. there are four turrets 0, (Z, c and f. To the.underside of the grate plate 1" there is fixed an annular flange t whichdips into a water Specification of Letters Patent.

Application filed may 8, 1907.

Patented (let. L l, T909.

Serial No. 372,626.

seal n arraugedin the foundation u of the producer.

The plate 1' together with the turrets is rotated in the well knownmanner by a worm not shown in the drawing and engaging into a worm wheel8 fixed to the plate 1'.

o is a lateral projection in the form of a scraper for removing slagfrom the wall 7) a of the producer. ()ne of such scrapers 0 may beprovided on each of the outer turrets. These scrapers are best madehollow and provided with openings. Each of the turrets is likewiseprovided with openings g.

11. is the tube for leading in the blast, and its upper part is fixed tothe grate itself. This upper part dips into the water seal 1:, and bearsdistributing pipes 7': leading into the turrets. In the tube h the steampipe Z is arranged the upper part of which can turn in the collar m, andterminates in several branch pipes 41, which lead directly under thegrate turrets and under the projection 0. If the grate plate is rotatedthe distribution pipes 7.1 and branch steam pipes at are also rotated,so that their position relalive to the turrets always remains the same.

By the rotating motion of the turrets 1ying at unequal distances fromthe axis of rotation, the combustible is moved toward the producer wall,and continually slips down the steep turrets and is thus well broken up;whereby the caking of the combustible and the settling of the latter onthe grate is prevented, and a better distribution of the blast led inthrough' the pipes /L and 7.;

obtained. Moreover, by the scrapers .2 the combustible next to theproducer wall 7) is broken up and the slag scraped oil from the latter.

In order to prevent the turrets of the grate and the scrapers 0 fromburning away while working in the red hot cinders, steam is led underthe turrets and the scrapers through the pipes Z and n. I

In the form of. construction shown around the central turret. there arefour further turrets arranged. The scope of the invention will nothowever be exceeded, if more or fewer turrets tral one.

\Vhat l claim as my invention and desire to secure by Letters Patent is1,

1. In a grate for gas producers in coinbination, a tower like erectionarranged m the middle part of the grate plate and consisting ofaplurality of steep turrets integral are arranged around the cen-'central turret, means with each other and adapted to move thecombustible toward the producer wall, said turrets being hollow andprovided with apertures, means for rotating the said grate platetogether with said tower like erection, and means for leading a blast ofair into said steep turrets. substantially'as set forth.

2.- In a grate for gas producers in con1bination, a tower like erectionon the grate and consisting of a plurality of turrets arranged atunequal distances from the vertical axis of the grate, said turretsbeing hollow and provided with apertures, means for rotating the saidgrate together with the said turrets, means for leading a blast of airinto said turrets, and means for leading steam into saidturrets,substantially as set forth.

3. In a grate for gas producers in combination, a tower like erection onthe grate and consisting of a central turret and a plurality ofturretsarranged around the said for rotating the said grate together with thesaid turrets, a lat eral projection on one of the said outer turrets,said lateral projection having a cutting edge, said turrets and lateralprojection being hollow and provided with apertures, means for leading ablast of air into said turrets, and means for leading steam into saidturrets, substantially as setforth.

4:. In a grate for gas producers in combination, a tower like erectionon the grate and consisting of a hollow central turret and a pluralityof hollow turrets arranged around the said central turret, means forrotating the said grate together with the said turrets, lateralprojections on said outer turrets, each of said lateral projectionshaving a cutting edge and adapted to remove clinker from the walls ofthe gas producer, there being apertures in said hollow turrets andlateral projections, means for leading a blast of air into said turrets,and means for leading steam into said turrets, substantially as setforth.

l l l l I, l I

.and consisting of a 5. in a grate for gas producers in combination atower like erection on the grate and consisting of a hollow centralturret and a plurality of hollow turrets arranged around the saidcentral turret, means for rotating the grate together with the saidturrets, lat eral projections on said outer turrets, each of saidlateral projections having a cutting edge and adapted to scrape clinkerfrom the wall of the gas producer, there being apertures in said hollowturrets and latera projections, a main tube for tlicblast terminating ina water seal, an upper iuain tube dipping into said water scal, branchesoi said upper main tube adapted to lead the blast under each turret, andmeans for leading steam under each hollow turret and lat eralprojection, substantially as set forth.

(3. ln a grate for gas producers in coinbination a tower like erection011 the grate hollow central turret and a plurality of hollow turretsarranged around the said central turret, means for rotating the gratetogether with the said turrets, lateral projections on said outerturrets, each of saidlateral projections having a cutting edge andadapted to scrape oil the clinker from the wall of the gas producer,there being apertures in said hollow turrets and in said lateralprojections, a main tube for the blLlSlZOIf air terminating in a waterseal, an upper main tube dipping into said Water seal branches of saidupper main tube, adapted to lead the blast under each turret, a mainsteam pipe terminating in a collar, an upper pipe rotatable on saidcollar, and branches of said upper pipe adapted to lead the steam undereach turret and lateral projection, substantially as set forth.

In testimony whereof I have hereunto signed my name this 29th day ofApril 1907, in the presence of two subscribing witnesses.

HUGO REHMANN.

Witnesses:

M. Exams, ALFRED POI-ILMEYER.

